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Medical Term:


Pronunciation: he'ma-toks'i-lin, hem-a-


A crystalline compound, containing the coloring matter of Haematoxylon campechianum (logwood). It is used as a dye in histology, especially for cell nuclei and chromosomes, muscle cross-striations, and enterochromaffin cells; its staining properties depend on its oxidation to hematein and mordanting with chrome and iron alums. It is also used as an indicator (red to yellow at pH 0 to 1, yellow to violet at pH 5 to 6).

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